<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <h1 v-text="info">这是h1</h1>
    <!--v-model双向绑定-->
    <input type="text" v-model="info">
</div>

<!--引入VUE-->
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
    let v = new Vue({
        el:"div",
        data:{
            info:"测试双向绑定"
        }
    })
</script>
</body>
</html>